Glass fastener



FIG. 1 is a perspective top view of my new ornamental design for a glass fastener;

FIG. 2 is a perspective bottom view of the glass fastener shown in FIG. 1;

FIG. 3 is a front view of the glass fastener shown in FIG. 1 with the back view being a mirror image of;

FIG. 4 is a left side view of the glass fastener shown in FIG. 1 with the right side view being a mirror image of;

FIG. 5 is a top view of the glass fastener shown in FIG. 1; and,

FIG. 6 is a bottom view of the glass fastener shown in FIG. 1.

The broken lines in the drawings illustrate portions of the glass fastener and form no part of the claimed design. 

CLAIM The ornamental design for a glass fastener, as shown and described. 